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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 
 
 

NH2-terminal sequences of two src proteins that cause aberrant transformation.

Two isolates of recovered avian sarcoma viruses (rASVs), rASV157 and rASV1702, transform cells in culture, but have greatly reduced in vivo tumorigenicity. The src proteins of rASV157 and rASV1702 have alterations within their NH2 termini, are not myristoylated, and have an altered subcellular localization. We have molecularly cloned and determined the nucleotide sequences of the src genes of rASV157 and rASV1702. We found that their src proteins have unusual NH2 termini: the rASV157 src protein NH2 terminus consists of 30 amino acids of the env signal peptide attached to Ser-6 of the src sequence, while the rASV1702 src protein NH2 terminus consists of 45 amino acids of the env signal peptide attached to Ala-76 of the src sequence. Expression of recombinant Rous sarcoma virus constructs containing the molecularly cloned rASV src genes produced src proteins with the same properties as those of the parental viruses. Our results suggest that the NH2-terminal structures are responsible for many unusual properties of the mutant src proteins.[1]

References

  1. NH2-terminal sequences of two src proteins that cause aberrant transformation. Garber, E.A., Hanafusa, H. Proc. Natl. Acad. Sci. U.S.A. (1987) [Pubmed]
 
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